A Comparison of Uptake of Tea Stains and Effectiveness of Denture Cleansers on CAD/CAM Versus Conventional Acrylic Denture Base.

BACKGROUND AND

OBJECTIVE

To compare the uptake of tea stain and the effectiveness of denture cleansers on computer-aided design/computer-aided manufacturing versus conventional acrylic dentures.

MATERIALS AND

METHODS

This in vitro study used a total of 60 samples. Thirty samples from each group of CAD/CAM and conventional acrylic denture base samples. Then each group was divided into 3 subgroups of 10 samples. Each group was exposed to tea stains. After that, group A was exposed to water as the control group, group B to Corega, and group C to fittydent cleanser. Color measurements using a spectrophotometer were made at baseline, after tea staining, and then after immersion in the control group and denture cleansers. Statistical analysis involved t-tests and one-way analysis of variance (ANOVA).

RESULTS

Significant uptake of tea stain was seen in both types of denture bases. Corega denture cleanser showed better stain removal from both types of denture bases. CAD/CAM denture bases show significantly better stain removal when immersed in cleansers.

CONCLUSION

Alkaline peroxide-based denture cleansers are more effective in the removal of tea stain and CAD/CAM-based dentures, when immersed in cleansers, show better stain removal.